The ethical lines we draw today will shape the science of tomorrow.

赏析：父辈或兄长有良好的行为，子弟们未必学得很像，但是父辈或兄长有恶劣的行径，子弟们一学就会。所以，我们从中知道，父辈或兄长教导子弟，必须先要以身作则，做好表率，这比口头的说教管用。赏析：为人父母，要想教育好孩子，最好的方式就是言传身教，以身作则，正人先正己。勿以善小而不为，勿以恶小而为之。孩子良好的品行要从点滴的小事做起。

化学的乐趣在于实践，而不仅仅是发现。

在词语之间的沉默中，真相常常隐藏其中。

The number one organ of ridicule, nowadays, is the newspaper. If you open the newspaper any day of the week, it's full of people who've messed up their lives. They've slept with the wrong person, taken the wrong substance, passed the wrong piece of legislation -- whatever it is, and then are fit for ridicule. In other words, they have failed. And they are described as "losers." Now, is there any alternative to this? I think the Western tradition shows us one glorious alternative, which is tragedy.

In the vastness of the universe, our problems seem small, yet our potential for understanding is limitless.

Light is the essence of architecture; it defines spaces and gives them meaning.